In  a dead link was deleted.
The (deleted) link was pointing to a draft of a document.
I would suggest re-adding a link, this time pointing to a more-permanent document (not a draft).
Potential alternatives would be:
- Older https://doc.opensuse.org/documentation/html/openSUSE_122/opensuse-tuning/cha.tuning.io.html#cha.tuning.io.barrier
- Newer https://doc.opensuse.org/documentation/leap/tuning/html/book.sle.tuning/cha.tuning.io.html#cha.tuning.io.barrier
- I actually did find an updated version of the linked document: https://www.suse.com/documentation/sles-12/book_sle_tuning/data/cha_tuning_io_barrier.html . The reason I still removed the link was because the paragraph with the link contained basically the same text as the linked SLES doc, so I didn't see any need for it. If you think one of these links could be useful, feel free to add it back. -- nl6720 talk 13:47, 16 October 2016 (UTC)
- Generally speaking, when a command or a behavior is questioned / put in doubt, sometimes users edit the wiki pages according to their own experiences (whether they performed the steps correctly or not). Having some kind of sources/resources/context/links for the information posted in the wiki might help clarify the steps / commands / disagreements.
- Considering that the wiki text replicates (only) the relevant practical paragraphs of what the original document states, a link to the opensuse document functions as a "reference". The Arch wiki usually doesn't make use of "references" (as oppose to Wikipedia, which almost "demands" them), so I am not sure what should be done in this case. Now that valid/current links are posted here, I'll leave it for someone else to decide Ady (talk) 14:33, 16 October 2016 (UTC)
- If a reference is needed, linking directly to the most upstream documentation, i.e. kernel.org should always be the preferable solution: all the documents linked above seem not to add anything to these two. A different thing would be linking to articles (possibly from reputable sources) that offer more in-depth explanations, for example  in this case. — Kynikos (talk) 10:48, 17 October 2016 (UTC) or
Hi, it seems that metadata checksums are not default as of core/e2fsprogs 1.43.1-1, I had to specify -O metadata_csum manually when creating the filesystem, otherwise dumpe2fs does not show metadata_csum in Filesystem features. Vl.still (talk) 10:07, 6 January 2017 (UTC)